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Unread 12-20-2006, 07:38 PM   #1
OutDoorDawg
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1999 TJ Wrangler 
 
Join Date: Sep 2006
Location: Wisconsin
Posts: 52
Finding Gear Ratio???

i know i see this same thread ALOT but i have the same question because i have looked and i havent found the ration yet. when i look at the 9 o'clock position on the rear of the axle i see the DANA sign then a bunch of numbers (no gear ratio, or i jus dont know what im lookin for) then on the far 9 o'clock there is a plate with 2 rows of numbers but not a ratio that i can see

also i have decided to go with a 2" BB and 31x10.5 BFG all terrains but i would like to know if i need to re-gear (of course i need to find the ratio first) or if i need wheel spacers with my stock rims

any advice or pics would help A BUNCH

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Unread 12-20-2006, 08:11 PM   #2
JFM626
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2004 TJ Wrangler 
 
Join Date: Feb 2005
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The numbers are on the tag look for 4.11 which I believe is what a four cylinder came with in 99, and before you ask it will also be a Dana 35.
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Unread 12-20-2006, 08:12 PM   #3
Rocky529
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Quote:
Originally Posted by OutDoorDawg
i know i see this same thread ALOT but i have the same question because i have looked and i havent found the ration yet. when i look at the 9 o'clock position on the rear of the axle i see the DANA sign then a bunch of numbers (no gear ratio, or i jus dont know what im lookin for) then on the far 9 o'clock there is a plate with 2 rows of numbers but not a ratio that i can see

also i have decided to go with a 2" BB and 31x10.5 BFG all terrains but i would like to know if i need to re-gear (of course i need to find the ratio first) or if i need wheel spacers with my stock rims

any advice or pics would help A BUNCH
Post up what the numbers say, we will help you. You are looking in the correct spot.

With 31x10.5" tires, you are fine without spacers. Also, you shouldn't need to re-gear. Any bigger, and I would re-gear (especially with that 4 cylinder).
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2004 Jeep Wrangler Sport - 5 speed

Silver Metallic finish with black dual tops - Dana 44 Rear
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Spidertrax 1.25" Wheel Spacers - 32"x11.5" MT/R Tires
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Unread 12-20-2006, 08:31 PM   #4
SecondTJ
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judging from the 4-cylinder, if you've got a manual it should be 4.10s. if you cannot figure it out, you can always request a build sheet from jeep...

http://www.jeep.com/wccsapp/universa...ull&category=U
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'00 Sport. 5-speed, Detroit TrueTrac Dana 44 rear, Detroit TrueTrac front, 4.10's, 2" RE BB, OME shocks, 31" BFG MT, JKS Quicker Disco's, Borla

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Unread 12-21-2006, 02:46 PM   #5
OutDoorDawg
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1999 TJ Wrangler 
 
Join Date: Sep 2006
Location: Wisconsin
Posts: 52
sorry that i could get the numbers asap (its was and is still raining) but i got the numbers and here they are

is there supposed to be something above the DANA symbol
DANA (symbol)
43225
015 9
REV K
02 27 97



on the far 9 o'clock(vertical tag)
52111763AB
735993-7


i appreciate the help
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Unread 12-21-2006, 02:51 PM   #6
PJL
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^ With that tag on my Dana 35, I had to clean it considerably to see all the numbers. When you're looking at the back of the axle, it's the vertical tag in the 9 o'clock position with the sideways writing. Your gear ratio will be on the top on the 2nd column (the one that would be on the bottom-left if you were looking at it right-side up) and will either be a 3 or a 4 followed by 2 numbers.

I run 31x10.5 Revos on stock 15x7 rims and stock 3.07 gearing with no problems. It's nice to know what gearing and such your TJ has, but you don't *need* to regear for those tires. A couple washers under your steering stops will correct any control arm rubbing you may have when you crank your wheel to the far right or left.
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